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What wire size is needed for a 5hp 240 volt compressor with 25 full load amps and 60 feet from breaker box?
Wiki User
∙ 14y ago
Motor feeder conductors have to be rated at 125% of the FLA according to the electrical code. This will boost your 25 amps FLA up to 25 x 125% = 31.25 amps. Adding in the distance, the recommended wire size would be #8 copper conductor with a insulation factor of at least 60C. This wire's rating is 40 amps.
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Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThe wire size is going to be large. When a motor load is connected keep in mind that the starting current is 250 - 300% of the full load current.
Normal wire size for 25 amps is #10 rated for 30 amps.
A #4 copper conductor will limit the voltage drop to 3% or less when supplying 25 amps for 500 feet on a 240 volt system. This is for a normal voltage drop over that distance.
A 2/0 MCM copper conductor will limit the voltage drop to 3% or less when supplying 63 amps for 500 feet on a 240 volt system. Because of the starting current this is the size of wire that you will need.
For that distance and price of the wire you may want to think about a couple of Transformers to bump the voltage up to a higher value (it lowers the current) and bump it back down at the motor end to the working 240 volts. Talk to an electrician in your area, he might have access to used transformers.
Wiki User
∙ 10y agoThis is a voltage drop question. The voltage and HP or amperage of the compressor has to be stated along with whether the compressor is single phase or three phase.
Wiki User
∙ 13y ago6awg
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What size wire needed for 25 amps 220 volts for 75 feet?
10 AWG in copper.
Can you run a 10 gauge wire 250 feet to the barn on a 120 amp breaker in the house If not what amp breaker should I use?
#10 cable is no good for 120 amps, you need #2 cable, and it can be used at a distance of 250 ft.
How much loss from power pole to 200 amp breaker box then off 400 feet then split at a pump house then another 30 feet to a 100 amp breaker box?
For an accurate calculation it will be necessary to know what the size of breaker exists in the pump house and what size conductors are used. Power loss is measured using actual amps required, not size of the circuit involved. But the size of circuit (breaker size) can be used. Voltage must also be known.
What size wire needed for 100 amp service 700 feet away?
A 400 MCM copper conductor will limit the voltage drop to 3% or less when supplying 100 amps for 700 feet on a 240 volt system. This size will allow the conductor to be loaded to 80 amps. 100 x 80% = 80 amps. Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 100 amps then you would need to use a wire with a rating of 125 amps. 125 x 80% = 100 amps. A 600 MCM copper conductor will limit the voltage drop to 3% or less when supplying 125 amps for 700 feet on a 240 volt system.
What size wire should I use for a 50' 30 amp 240 volt line?
For the short distance of 50 feet no voltage drop calculations are needed. A #10 copper conductor with a insulation factor of 60, 75 or 90 degrees C is rated at 30 amps respectively. This conductor can legally be loaded to 80% capacity. This allows 30 x .8 = 24 amps. If the device draws more that 24 amps then go to the next wire size which is a #8. A #8 copper conductor with an insulation factor of 75 and 90 degrees C is rated at 45 amps respectively. This legally allows 45 x .8 = 36 amps to flow on the wire. Of course with this size wire only 30 amps will be allow to flow before the breaker will trip.
What size breaker and wire for barn lighing 10 x 60W bulbs and outlets which are 200 feet from main box?
For the lighting load the amperage is A = W/V = 600/120 = 5 amps. As for what will be plugged into the receptacles will be a guess for the calculations. I will give you a full 15 amps for receptacle loads at 120 volts. Total amperage is 20 amps. The breaker for this circuit will be a 20 amp breaker but there may be a problem getting the #6 wire under the breakers terminal connection points. If this is the case use a #6 lug to connect to the breaker and connect the wire into the lug. A #6 copper conductor will limit the voltage drop to 3% or less when supplying 20 amps for 200 feet on a 120 volt system.
What size wire needed for 25 amps 220 volts for 75 feet?
10 AWG in copper.
Can you run a 10 gauge wire 250 feet to the barn on a 120 amp breaker in the house If not what amp breaker should I use?
#10 cable is no good for 120 amps, you need #2 cable, and it can be used at a distance of 250 ft.
Can a 14 AWG solid copper wire that's 15 feet long carry a load of 40 amps?
No, a #14 conductor is only rated for 15 amps. If the wire insulation is rated for 90 degrees C and is connected to a 90 degree rated circuit breaker the ampacity can be raised to 25 amps.
What size conductor is needed to carry 25 amps 120 volt AC over 400 feet?
A #4 copper conductor will limit the voltage drop to 3% or less when supplying 25 amps for 400 feet on a 120 volt system.
What size wire do you need to run a 220 pump 40 amp breaker 130 feet?
This is a tricky question to answer without all of the information necessary for calculations. A motor has to have a breaker sized at 250% of the motor's full load amps. Wire is sized by the amount of amperage that it is allowed to carry.If the breaker is sized at 250% then the motor's full load amperage must be 16 amps if this is the case then the conductor for 16 amps at 130 feet will be #12 copper or #10 aluminium. the insulation rating for the conductors must be 90 degrees C.If the motor's full load amperage is 40 amps then the conductors, both copper and aluminium must have an insulation factor of 90 degrees C ad the wire size will be #6. The breaker for this pump must then be a 100 amp breaker. The larger size breaker is used so that it does not trip due to the inrush current when the motor starts. It could be in the range of 300 to 600% of the motors full load amperage.
Can you use 60 amp breaker for 110 V at 110 ft and what wire is best?
A breaker is based on wire size, as the breaker protects the wire and not the load. This is a voltage drop question. A #3 copper conductor will limit the voltage drop to 3% or less when supplying 60 amps for 110 feet on a 110 volt system.
How much loss from power pole to 200 amp breaker box then off 400 feet then split at a pump house then another 30 feet to a 100 amp breaker box?
For an accurate calculation it will be necessary to know what the size of breaker exists in the pump house and what size conductors are used. Power loss is measured using actual amps required, not size of the circuit involved. But the size of circuit (breaker size) can be used. Voltage must also be known.
What gauge wire is needed for 200 feet with 110 volts and 50 amps?
6 AWG will handle 50 amps with a voltage drop of about 4 volts. If you go to 4 AWG and limit to 50 amps your voltage drop will be 2.5 volts.
What size in square mm copper wire will be required to carry 26 amps?
You will need a 40 amp breaker using AWG # 8 wire running it a distance of no more than 50 feet.
What size wire for 75 feet of wire for a 30 amp 220 volt oven?
A 30 amp breaker run 75 feet would require you use AWG #10 wire. But, an oven normally pulls more that 30 amps and I would not use #10 wire on a 30 amp breaker for an oven. Normally any newer oven is wired with AWG #6 gauge wire on a 50 amp circuit breaker so the breaker will not trip during heavy use of the oven. Some older ovens could use a #8 wire on a 40 amp breaker.
What size wire needed for 100 amp service 700 feet away?
A 400 MCM copper conductor will limit the voltage drop to 3% or less when supplying 100 amps for 700 feet on a 240 volt system. This size will allow the conductor to be loaded to 80 amps. 100 x 80% = 80 amps. Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 100 amps then you would need to use a wire with a rating of 125 amps. 125 x 80% = 100 amps. A 600 MCM copper conductor will limit the voltage drop to 3% or less when supplying 125 amps for 700 feet on a 240 volt system.
